86.45% is the change from 310 to 578
Calculation steps:
[( 578 - 310 ) ÷ 310] x 100 = 86.45%
Formula
Percentage change = [(578 - 310) / 310] x 100
Subtract the new number by the original number
578 - 310 = 268
268 ÷ 310 = 0.864516129032258
0.864516129032258 x 100 = 86.45%